F25J 3/04872
Vertical layout of cold equipments within in the cold box
Official title: {Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.}
F25J3/04872 (Vertical layout of cold equipments within in the cold box) appears on 226 US grants and 180 published applications in this corpus.
Search patents in F25J- Granted patents
- 226
- Published applications
- 180
- Assignees
- 33
- Inventors
- 257
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 17 | 0 |
| 1998 | 12 | 0 |
| 1999 | 9 | 0 |
| 2000 | 8 | 0 |
| 2001 | 17 | 5 |
| 2002 | 6 | 4 |
| 2003 | 9 | 5 |
| 2004 | 2 | 4 |
| 2005 | 1 | 1 |
| 2006 | 1 | 5 |
| 2007 | 2 | 6 |
| 2008 | 3 | 3 |
| 2009 | 1 | 3 |
| 2010 | 0 | 4 |
| 2011 | 2 | 6 |
| 2012 | 0 | 2 |
| 2013 | 3 | 5 |
| 2014 | 2 | 3 |
| 2015 | 3 | 7 |
| 2016 | 5 | 16 |
| 2017 | 4 | 13 |
| 2018 | 12 | 7 |
| 2019 | 14 | 27 |
| 2020 | 11 | 7 |
| 2021 | 6 | 10 |
| 2022 | 15 | 7 |
| 2023 | 8 | 8 |
| 2024 | 7 | 15 |
| 2025 | 6 | 3 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air separation unit and air separation method25 Aug 2026US 12,716,651 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Power generation process utilizing fuel, liquid air and/or oxygen with zero CO2 emissions28 Apr 2026US 12,613,064 B2Saipem S.P.A.
- Process for cryogenic fractionation of air, air fractionation plant and integrated system composed of at least two air fractionation plants30 Dec 2025US 12,510,294 B2Linde Aktiengesellschaft
- System for purifying argon by cryogenic distillation23 Dec 2025US 12,503,365 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Apparatus and process for liquefying gases9 Dec 2025US 12,492,864 B1
- Method for cryogenic separation of air, and air separation system10 Sep 2026US 2026/0266539 A1Linde Aktiengesellschaft
- Method for cryogenic separation of air, and air separation plant16 Jul 2026US 2026/0202125 A1Linde Aktiengesellschaft
- Apparatus and method for maintaining or increasing liquid production of an air separation unit9 Jul 2026US 2026/0194295 A1Air Liquide Large Industries U.S. LP
- System and method for production of ultra-high purity oxygen5 Feb 2026US 2026/0035243 A1
- Apparatus and process for providing nitrogen and oxygen18 Sep 2025US 2025/0290692 A1Air Products and Chemicals, Inc.
Most cited
By later US patents
- Efficient process to produce oxygen48US 5,966,967 AAir Products and Chemicals, Inc. · 1999
- High speed pressure swing adsorption liquid oxygen/liquid nitrogen generating plant34US 4,957,523 APacific Consolidated Industries, LLC · 1990
- Cryogenic air separation system with liquid air stripping32US 5,440,884 APraxair Technology, Inc. · 1995
- Production of ultra-high purity oxygen from cryogenic air separation plants31US 5,049,173 AAir Products and Chemicals, Inc. · 1991
- Distillation processes and apparatus29US 4,025,398 A1977